{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x1ec3b5023722420d38c03a382551832dbe7a03107e6ac1d7a83ce07b288fc341",
    "signature": "0x1af49d4eaed8ec405f85ca506d4d28a3b23f655bfd67210566bb4b6d59886d3908a6c9a2241fb57dc4755e7dbc9fa6973fde4e2408e8ba3060ee23eee91e840f1b",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}